Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
160070moderately pollutedgood141excellent
150069moderately pollutedgood151excellent
140051lightly pollutedexcellent121excellent
130039lightly pollutedexcellent111excellent
120051lightly pollutedexcellent111excellent
110055lightly pollutedexcellent111excellent
100049lightly pollutedexcellent111excellent
090047lightly pollutedexcellent121excellent
080059lightly pollutedexcellent121excellent
070055lightly pollutedexcellent121excellent
060063moderately pollutedgood131excellent
050069moderately pollutedgood141excellent
040065moderately pollutedgood161excellent
030078moderately pollutedgood171excellent
020082moderately pollutedgood181excellent
010082moderately pollutedgood191excellent
000080moderately pollutedgood181excellent
230080moderately pollutedgood181excellent
220073moderately pollutedgood181excellent
210074moderately pollutedgood171excellent
200066moderately pollutedgood161excellent
190074moderately pollutedgood141excellent
180069moderately pollutedgood141excellent
170069moderately pollutedgood141excellent